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We are committed to monitoring the water quality of the County's lakes to ensure their continued health, as well as the health of the public who utilize the lake's many resources. We invite you to learn more about our program by looking through the pages listed on the left. This site contains detailed graphs of water quality data, photographs of water sampling, and general information about the water quality of King County's lakes


If you have question on this site, please contact Debra Bouchard (206) 477-4650 or Curtis DeGasperi (206) 477-4677

Lake News

Catching and eating fresh fish

With summertime approaching, many of us are looking forward to fishing area lakes and Puget Sound. Some fish are safer to eat than others. Check out the Public Health Insider blog post to learn where to fish, and what to fish for, throughout King County.

Animal Safety Alert - Toxic Algae Blooms

Read this article from the to learn about toxic algae and your pet.